Classification
006 - Special computer methods
812
658 - General management
744
330 - Economics
632
005 - Computer programming, programs & data
393
610 - Medicine & health
393
004 - Data processing & computer science
384
616 - Diseases
382
370 - Education
354
300 - Social sciences
302
302 - Social interaction
274
100 - Philosophy & psychology
258
150 - Psychology
245
612 - Human physiology
229
158 - Applied psychology
211
700 - The arts; fine & decorative arts
205
900 - History & geography
186
155 - Differential & developmental psychology
183
320 - Political science
171
000 - Computer science, information & general works
170
306 - Culture & institutions
166
331 - Labor economics
161
500 - Natural sciences & mathematics
161
650 - Management & auxiliary services
159
153 - Mental processes & intelligence
157
152 - Perception, movement, emotions & drives
136
333 - Economics of land & energy
133
620 - Engineering & allied operations
129
380 - Commerce, communications & transportation
121
621 - Applied physics
119
140 - Specific philosophical schools
117
301 - Sociology & anthropology
110
600 - Technology
104
384 - Communications; telecommunication
101
304 - Factors affecting social behavior
94
363 - Other social problems & services
89
305 - Social groups
88
338 - Production
88
381 - Commerce
81
670 - Manufacturing
80
170 - Ethics
79
400 - Language
74
332 - Financial economics
72
800 - Literature & rhetoric
65
371 - Schools & their activities; special education
64
613 - Personal health & safety
60
340 - Law
54
618 - Gynecology, obstetrics, pediatrics & geriatrics
54
745 - Decorative arts
51
200 - Religion
50
303 - Social processes
49
more ...